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中国农学通报
山东省粮食产量影响因素分析及增产对策研究
刘晓敏,石 喆
Influencing Factors and Countermeasures for Grain Yield Increase in Shandong Province
Liu Xiaomin and Shi Zhe
中国农学通报 . 2016, (12): 171 -174 .  DOI: 10.11924/j.issn.1000-6850.casb15070181